Home / 778,703.10-1,167,190.65-305,231.10

Finding the Fourth Proportional to 778,703.10, 1,167,190.65 and 305,231.10

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Solution

The fourth proportional to 778,703.10, 1,167,190.65 and 305,231.10 is: 457,507.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,703.10 : 1,167,190.65 = 305,231.10 : x
  2. Step 2: Convert to fraction form
    778,703.10/1,167,190.65 = 305,231.10/x
  3. Step 3: Cross multiply
    778,703.10x = 1,167,190.65 × 305,231.10
  4. Step 4: Simplify right side
    778,703.10x = 356,262,886,009.22
  5. Step 5: Solve for x
    x = 356,262,886,009.22/778,703.10
  6. Step 6: Final answer
    x = 457,507.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.